Plow.



No; 885,759 PATENTED APR. 2a, 1908. T. J. JOHNSON.

PLOW. rruouion nun APB.15.1907.

2 SHEETS-SHEET 1.

W/ T/VE SSE S 1n: NORRIS rum-{ s co WASHINGTON. n. n,

INVENTOI? W y N 0 m W 0 L P J 1 APPLICATION FILED .APE.15, 1907.

2 SHEETS-SHEET 2.v

INVENTOI? I I Pi WITNESSES ATTORNEY TRUMAN JAMES JOHNSON, OF WILLIAMS, IOWA.

PLOW.

Specification of Letters lfatent.

Patented April 28, 1908.

Application filedApril 15, 1907. Serial No. 368,297.

To all whom it may concern:

Be it known that I, TRUMAN JAMEs J OHN- soN, a citizen of the United States, residing at Williams, in the county of Hamilton and State of Iowa, have invented certain new and useful Improvements in Plows, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to improvements in plows, and the object of my invention is to provide a plow which will have a wide range of adjustment and which will enable the operator to control the soil turning devices with freedom, ease and rapidity. The supporting frame-work of the plow is carried by an axle which in turn is supported uponwheels The driver or operator is mounted in the seat .secured to the rear ofthe frame-work and in rear of the axle. On each side of the seat is mounted a plow.

rotate about a horizontal axis in one of the frame members. axis is free to rotate about a vertical pivot and thus it is possible to move the plow from side to side as well as up and down. In lowering the plow, the weight of the plow serves to carry it downward and to extend a coil spring, thereby storing energy in this coil spring.

When it is desired to raise the plow, .an initial impulse is given to a rock-shaft with which the coil spring is connected through a rocker-arm; and after. the rocker-arm has rotated sufficiently, the stored energy of the coil spring becomes effective to throw the rock-shaft over completely. The latter is suitably connected with the plow and this action of the spring raises the plow. The plow-beams are pivotally mounted in their support and are connected by an arch-support made u of two. parts which are adjustable relative y to each other in such manner that the plow-beams may be brought closer together or forced further apart.

In the drawings illustrating the principle of my invention and the best mode now known to me of applying that principle, Figure 1 is a plan view and Fig. 2 is a side elevation of my new plow; Fig. 3 is a detail in inverted plan view of the pivotal support for the plow; Fig. 4 is a sectional detail on the line A A of Fig. 3; and Fig. 5 is a detail of the arch-support which connects the free ends of the plow-beams.

tongues or poles c.

This plow may be readily raised and lowered, since it is mounted free to Further, this horizontal To the cross beam at are secured the The tongues c are each connected with the axle e, by means of a pair of yoke members f secured at g to the crossbeam (1.. (See Fig. 1). Mounted upon one end of the sup orting bars h is a seat 2, the other end oft e supporting bars being secured to the cross-beam a. U on each end of the axle e is mounted a whee j. The soilturning mechanism is made in two parts; and since these two parts are the same, it will suflice to describe only one of them.

Beneath. each tongue 0 is mounted a circular band or ring is (Figs. 1, 2 and 4) and beneath and fastened to the latter (Fig. 4) is a rin -shaped band n. The latter is bent up- Wardly at each end of a diameter to form stop-lugs m (Figs. 3 and 4) and these stoplugs are the parts of the ring-shaped band 11. which are fastened to the lower face of the ring 7c. As will be seen from an inspection of Figs. 3 and 4, the ends of a cross-rod 0 travel between the bands k and n, the cross-rod 0 being pivotally mounted on a pivot-pin 21 (Fi 3). It will be obvious from Fig. 4 that the imit of travel of the ends of the cross-rod 0 will 'be determined by the stop-lugs m. The ends of the plate p are sleeved on this cross-rod 0, whereby the plate 19 is free to swing about the cross-rod 0. To the late 19 is secured the front end of two dra ars g, each of which carries at its rear end a plowbeam 2" to which are secured the plowshares s. The drag-bars may be raised and lowered,

since they are free to swing in a vertical plane about the cross-rod 0 through their connection with the plate sleeved thereon; and these drag-bars are a so free to be swung from side to side, the cross-rod 0 in that case moving between the bands 7c and a about the pin 21 as a pivot.

To the top of each tongue 0 is secured a plate 25 formed with upwardly extending lugs or cars a in which is j ournaled a rock-shaft '0 upon which are mounted fast three rockerarms w, :20, and y. Near the front end of the tongue cis secured a plate 2 the front end of which is formed with an upwardly extending lug 2 between which and the free end of the rocker-arm w is inter osed a coil-spring 3. The free end of the roc er-arm 0c is connected by means of a link rod 4 and chain 5 with each of the plow-beams r. Fulcrumed upon one of the supporting bars h is an operating lever 6 within convenient reach of the driver whenin the seat 2'. The lever 6 is connected by the link rod 7 with the rocker arm 8 mounted upon one end of the rock-shaft 9 the other end of which carries the rocker-arm 10. The latter is connected by a link 11 to the slotted end 12 of the rocker-arm y. WVhen the lever 6 is pulled back, it forces upwardly the slotted end 12 of the rocker-arm y and rocks the rock-shaft e, which throws over to the front the rocker-arm w. The tension of the spring then comes into play and pulls the rocker-arm to over to the dotted line position of Fig. 2, whereby the rock-shaft 1) causes the rocker-arm a: through the link-rod 4 to carry upwardly the plow-beams r to the dotted line position of Fig. 2. The plowbeams r are connected by an arch best shown in Fig. 5. This arch consists of the standards 13 one of which is mounted upon the top of each of the low-beams and is formed with slots 14, (Flg. 2). Secured to each of the standards 13 1s an L-shaped arch-support 15;

the horizontal portions of which are slotted at 16, (Fig. 1), and are secured together by bolts 17. By loosening the bolts 17, the horizontal portions of the arch-support may be adjusted relatively to each other, thereby spreading the plow-beams r apart, the latter being pivotally secured at 18 to the end of the braces g. In loosening the nuts 19, the vertical portion of the arch-support may be adjusted relatively to the standard 13. Secured to the top of the arch-support is an arm 20 within convenient reach of the operator; and by pulling or pressing downward upon the arm 20, the plow may be lowered from the dotted line position of Fi 2 to the full line position thereof, the plows eing piv otally supported upon the cross-bar 0 as heretofore explained. Further, by pushing or pulling upon the arm 20. the position of the plow may be adjusted laterally, the cross-bar 0 rotating about the vertical pivot 21, (Fig. 3), and the ends of the cross-bar 0 traveling between the bands is and n.

Further, it will be understood that by pressing downward upon the arm 20, the depth to which the soil turning devices's penetrate the ground, may be increased.

What I claim is 1. In a plow of the class described, the combination with a suitable supporting member, of a pair of bands supported thereby and fastened together, said bands being separated from each other through a part of their length; a rod pivotally mounted on said member, the ends of said rod traveling between said bands; a plate mounted free to swing upon said rod; a drag-bar one end of which is fastened to said plate and the other endof which extends to the rear; and soil-cutting devices mounted on said other end.

2. In a plow of the class described, the combination with a suitable supporting member, of a rock-shaft mounted thereon; three rocker-arms fast upon said shaft; a coil spring one end of which is fastened to said member and the other end of which is fastened to one of said rocker-arms; a drag-bar one end of which is pivotally mounted upon said member; a link-rod which connects the other end of said drag-bar with the second of said rocker-arms; an operating lever under control of the plowman link devices connecting said lever with the third of said rocker-arms, said third rocker-arm being slotted where said devices are connected with it; and soil-cutting devices mounted on said drag-bar.

In a plow of the class described, the combination with a suitable supporting member, of a pair of bands supported thereby and fastened together, said bands being separated from each other through a part of their length; a rod pivotally mounted on said member, the ends of said rod traveling between said bands a plate mounted free to swing upon said rod; a drag-bar one end of which is fastened to said plate; soil-cutting devices on. the other end of said drag-bar; and spring-controlled devices for automatically swinging said. drag-bar about said red as an axis.

4. In a plow of the class described, the

combination with a suitable supporting member, of a pair of drag-bars pivotally mounted thereon; a plow-beam mounted free to swing on the free end of each of said drag-bars and a two-part arch-support which connects said plow-beams, the parts of said arch-support being free to be adjusted relatively to each other, whereby said plow-beams may be swung closer together and further apart and secured in adjusted position and said arch-support serving as a means of moving said plow-beams relatively to the soil.

In testimony whereof I hereunto set my hand in the presence of the two undcrsigmwd witnesses, at said Williams.

'lRUMAN JAM ES J( )HNS( )N.

Witnesses:

Jomv Mothxmqnv.

.3. M. 'lamumrmn.

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